Temporary On-Skin Passive UHF RFID Transfer Tag

Ziai, Mohamed A.; Batchelor, John C.

doi:10.1109/tap.2011.2163789

Cited by 87 publications

(57 citation statements)

References 9 publications

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“…The designs presented are derived from [1] and are suitable for fabrication by printing processes such as conducting inkjet printing, [2]. The ink consists of a liquid vehicle containing silver nano-particles in a suspension deposited on proprietary transfer tattoo paper [3] and heat cured so that the suspending compound evaporates which enables conducting contact to be facilitated between the silver particles [4].…”

Section: Transfer Tattoo Tagsmentioning

confidence: 99%

Enhanced read range Tattoo RFID tags

Oyeka

Batchelor

Turki

2015

2015 IEEE International Symposium on Antennas and Propagation &Amp; USNC/URSI National Radio Science Meeting

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Abstract-Transfer Tattoo RFID tags are described for person locating scenarios.The technology considered is Radio Frequency Identification (RFID) at the UHF Band where it is possible to obtain wireless connection over distances of several meters using passive, or battery assisted transfers. The tags have the profile of tattoos and can be mounted straight onto the skin. Promising results for enhancing read distances, possibly to tens of meters, have been obtained using very thin battery technologies.

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Section: Transfer Tattoo Tagsmentioning

confidence: 99%

Enhanced read range Tattoo RFID tags

Oyeka

Batchelor

Turki

2015

2015 IEEE International Symposium on Antennas and Propagation &Amp; USNC/URSI National Radio Science Meeting

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“…1 that is proposed for application to tongue control is a development of an inkjet printed transfer tattoo design [8]. At 800 MHz the hard palate and tongue were modelled with material parameters such that r = 55 and conductivity = 0.9 S/m and the teeth with r = 12.5 and conductivity = 0.14 S/m.…”

Section: Passive Wireless Tongue Controlmentioning

confidence: 99%

Skin-mounted RFID sensing tattoos for assistive technologies

Batchelor

Rakibet

Rumens

et al. 2014

2014 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applicati

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-UHF RFID technology is presented that can facilitate new passive assistive technologies. Tongue control for human computer interfaces is first discussed where a tag is attached to the hard palate of the mouth and the tag turn-on power is observed to vary in response to tongue proximity. Secondly, a stretchable tag is fabricated from Lycra fabric that contains conducting silver fibres. The application of strain to the elastic tag again causes the required power at the reader to activate the tag to vary in proportion.This elastic tag is proposed as a temporary skin mounted strain gauge that could detect muscle twitch in the face or neck of an otherwise physically incapacitated person. Either design might be applied to the steering function of a powered wheelchair, or to facilitate the control of a computer mouse. Better than 3dB isolation is achieved in the tongue switching case and approximately 0.25dBm per percentage stretch is observed for the strain gauge.

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“…Sahu Unlike conventional etching and milling, where the waste includes hazardous chemicals, inkjet printing is an additive process, depositing controlled amounts of functionalized inks and producing no by-products [4]. Furthermore, inkjet printing is compatible with inexpensive flexible substrates such as polyethylene terephthalate (PET), photo paper, and Kapton.…”

Section: Introductionmentioning

confidence: 99%

Robust Microwave Characterization of Inkjet-Printed Coplanar Waveguides on Flexible Substrates

Sahu

Aaen

Lewandowski

et al. 2017

IEEE Trans. Instrum. Meas.

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Abstract-In this paper, we propose a robust microwave characterization of inkjet printed components on flexible substrates, which aim at measuring the material properties of silver nanoparticle inks and the supporting dielectric spacer employed during measurements. Starting with propagation constant extracted from multiline thru-reflect-line calibration with coplanar waveguide (CPW) standards and then proceeding with finite element modeling of CPWs, the proposed technique can dynamically produce an interpolated search space by automatic driving of simulation tools. In the final stage, the algorithm utilizes a least-square optimization routine to minimize the deviation between model and measurements. Our technique significantly reduces the computing resources and is able to extract the material parameters using even a nominal ink profile. Characteristic impedances for CPWs are extracted using series resistor measurements from 10 MHz to 20 GHz. It is also shown that the proposed characterization methodology is able to detect any changes in material properties induced by changes in fabrication parameters such as sintering temperature. Ink conductivities of approximately 2.973 × 10 0.201 × 10 7 S/m respectively. We verified our technique by measuring the material parameters with conventional approach.

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Temporary On-Skin Passive UHF RFID Transfer Tag

Cited by 87 publications

References 9 publications

Enhanced read range Tattoo RFID tags

Enhanced read range Tattoo RFID tags

Skin-mounted RFID sensing tattoos for assistive technologies

Robust Microwave Characterization of Inkjet-Printed Coplanar Waveguides on Flexible Substrates

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